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 Forum index » DIY Hardware and Software » Arduino
16bit polyphonic MIDI to CV converter
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craigbarnes



Joined: Oct 30, 2022
Posts: 22
Location: UK

PostPosted: Fri Jan 06, 2023 1:30 am    Post subject: 16bit polyphonic MIDI to CV converter Reply with quote  Mark this post and the followings unread

Whilst attempting to repair a professional MIDI to CV converter that I had blown up with 230v I purchased some replacement 8 channel 16bit DACs at a very reasonable price, as I only needed 1 for the repair I had 9 left over and decided to upgrade my original 12bit MIDI to CV to 16bit using these DACs

Specs are as follows

6 note polyphonic
CV outputs 0-5v
Software correction of the scaling from the menus
Velocity outputs 0-5v
Gates 0-5v
Triggers 0-5v
Modwheel 0-2v for AS3364 VCA control
Pitch bend 0-2v centered at 1v
Transpose
Octave 1-3 transpose
Monophonic with top, last or bottom priority
Polyphonic mode
Unison mode
MIDI channel selection

Details can be found on my GitHub pages

https://github.com/craigyjp/16bit-MIDI-to-CV-polyphonic-converter
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mph



Joined: Aug 25, 2007
Posts: 87
Location: France

PostPosted: Mon Feb 20, 2023 9:03 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi thanks for sharing!
Is it possible to get voices (CV/Gate outputs) played in rotating order in poly mode (like on the Obx, Prophet etc)?
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craigbarnes



Joined: Oct 30, 2022
Posts: 22
Location: UK

PostPosted: Mon Feb 20, 2023 9:06 am    Post subject: Reply with quote  Mark this post and the followings unread

They do rotate in order, they do not get reused as far as I'm aware, as long as a note is not in use and another is free it will not steal untill all 6 are in use.
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